Fixed graphic glitch in "edit event" form

Added width to #fromtime and #totime classes in order to avoid a grapic glitch on "edit event" form in calendar (see screenshot for details: http://imgur.com/6i19VDw)
Update style.css

Width set to 80px as suggested in order to solve a glitch with Chrome, see https://github.com/owncloud/calendar/pull/259#issuecomment-31301611
Update style.css

Fixed witdh of ```#event-allday``` in order to avoid a float-glitch with some "short" languagees like Japanese
Merge pull request #259 from tsumi/patch-1

OC 6.0.0a - Fixed graphic glitch in "edit event" form